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CVE-2026-53899

Cross-origin cookies could be leaked when opening a PDF link PUBLISHED

Description (CNA)

Firefox for iOS used partial domain matching when attaching cookies to PDF requests, allowing a malicious site on a suffix domain to receive cookies belonging to the target site. This vulnerability was fixed in Firefox for iOS 152.0.

Affected (CNA)

Vendor / productVersions
Mozilla / Firefox for iOSunaffected 152.0 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.